This British Standard was originally issued together with BS 1003, ' High purity zinc', at the request of the Zinc Development Association in 1942 when the development of dependable zinc alloys of good mechanical properties had resulted in a rapid ,increase in the use of zinc alloy die castings for engineering purposes. The formulation of these alloys was . the result of much r...

This Part of BS 1377 has been prepared under the direction of the Road Engineering Standards Policy Committee. It is a revision of clause 1 of BS 1377 : 1975 which is deleted by amendment. BS 1377 was first published in 1948 and first appeared in metric form in 1975. BS 1377. : 1975 which -has now been withdrawn is replaced by the following Parts of BS 1377 : 1990:Part 1. Gener...

This Part of BS 1377 specifies methods of test for the classification of soil and for the determination of basic physical properties. Most of these tests are required for the c1assifieetion of soils in accordance with BS 5930: 1981. Some of the properties determined by these tests are required for tests described in other Parts of this standard. Reference should be made to Part...

This Part of SS 1377 describes methods of test for determining characteristics related to the compaction of soils, which can be used as a basis for specifying requirements for soils compacted in the field. This Part also includes a method for assessing an empirical strength criterion (the CBR value) of a compacted or undisturbed soil used as a sub-grade material for pavement co...

This Part of BS 1377 describes methods of test for the determination of the consolidation characteristics of soils when subjected to changes in the applied effective stress, the permeability characteristics of sands, the susceptibility of clays to internal erosion by water, and the susceptibility of soils to heave in freezing conditions. Reference is made to some of the classif...

This Pan of BS 1377 specifies methods of test for determination of consolidation and permeability characteristics of saturated soils using apparatus which is more complex than that used for the tests described in Pan5. Two types of equipment are used:(a) hydraulically loaded one-dimensional consolidation cell;(b) a triaxial cons61idation cell. The most significant capabilities ...

This Part of SS 1377 describes methods attest for determining shear strength parameters of soils in terms of total stresses, or (in the case of drained direct shear tests) in terms of effective stresses which are equal to total stresses. None of these procedures therefore requires measurement of pore water pressure, which is covered in Parts of BS 1377. Shear strength is determ...

This Part of BS 1377 specifies procedures for the determination of the effective shear strength parameters for specimens of saturated soil which have been subjected to isotropic consolidation and then sheared in compression, under a constant confining pressure, by increasing the axial strain. The tests apply to specimens in the form of right cylinders of nominal diameters usual...

This British Standard is the second revision in metric terms of one of a series for aluminium and aluminium alloys in various wrought forms for general engineering purposes, the preparation of which was authorized by the Non-ferrous Metals Industry Standards Committee. In accordance with International agreement this introduces N/mm2 as the unit for expressing stress values but ...

This British Standard has been prepared under the direction of the Non-ferrous Metals Standards Committee. It is the fourth revision of this standard and replaces the 1972 edition which is withdrawn. Other standards in this series of specifications for wrought aluminium and aluminium alloys for general engineering purposes are as follows.BS 1470, Plate sheet and strip.BS 1471, ...

Sprayed metal coatings are produced industrially by melting the coating metal in a stream of hot gas and projecting it in the form of a dispersed spray on to the surface to be coated. The coating metal may be introduced into the hot gas stream either as powder or as wire. The principal change made in this edition of B.S. 2569. Part 1, have been in the requirements for the compo...

This revision of this British Standard has been prepared under the direction of the Welding Standards Committee. It embodies the technical developments that have taken place since the 1973 edition which is withdrawn. The relevant application standard, where it exists, should specify whether class I welding of pipework is required, but the factors to be taken into account in com...

This group of methods describes tests for determining the short-term tensile properties of the range of materials detailed in clause 1; this does not include films, thin sheet, PTFE and cellular materials. Methods applicable to thin sheet and film are described in Methods 326A to 326C•. Methods 320C to 320F are revisions and extensions of, and replace, methods 301 A to 301 L '...

Method 365A is used to determine the softness of flexible plastics materials by measuring the depth of penetration of a standard steel ball under a defined force into the surface of the material, in units of 0.01 mm. In this revision of method 307 A 'Softness number of flexible polyvinyl chloride extrusion compound' of BS 2782 : 1970 the main differences are that the diameter o...

This British Standard has been prepared under the direction of the Plastics and Rubber Standards Policy Committee and is identical with ISO 1183 : 1987 'Plastics - Methods for determining the density and relative density of non-cellular plastics', published by the International Organization for Standardization (ISO). It is a revision of BS 2782 : Method 620A to 620D : 1980 whic...

This British Standard is the first revision in metric terms of one of a series for copper and copper alloy in various wrought forms, the preparation of which was authorized by the Non-ferrous Metals Industry Standards Committee. Others in the series are:BS 2870. Rolled copper and copper alloys, sheet, strip and foil.BS 2872. Copper and copper alloys. Forging stock and forgings....

This British Standard has been prepared under the direction of the Non-ferrous Metals Standards Committee. It is the second metric revision of BS 2874, which was originally published in 1962 and subsequently revised in 1969 and it supersedes the 1969 edition, which is withdrawn. It is one in a series of standards for copper and copper alloys in various wrought forms, intended f...

This standard has been prepared under the direction of the Welding Standards Committee and is a revision of BS 2910 : 1973 which is withdrawn. It is essential to quote the technique number in addition to the BS number whenever this standard is used. Contrary to the 1973 edition, no distinction in technique is now made between ultra-fine-grain and fine-grain film and the two typ...

This British Standard has been prepared under the direction of the Iron and Steel Standards Policy Committee and is technically identical to BS 2989 : 1991 except for the deletion of the structural qualities together with any reference to them in the text. This standard, together with BS EN 10147, supersedes BS 2989: 1991 which is withdrawn. The structural qualities are specifi...

This British Standard, which was prepared under the direction of the Welding Standards Committee, is a revision of BS 3019 : Part 1 : 1958, which is withdrawn. The standard was first published in 1958 as general recommendations for manual inert-gas tungsten arc welding, Part 1, 'Wrought aluminium, aluminium alloysand magnesium alloys'. This revision takes account of development...